living sounds
Well-known member
I always wanted one of these for the cool high end sizzle and low end punch. A few years ago these could supposedly be picked up for 50 bucks, but mine cost me a lot more. After it finally arrived from the States it took me a few more weeks to get hold of the proper power cord, which, were it not for a semi-closed specialty electronics store, is pretty much unobtanium in Europe.
Anyway, I finally tried the unit out yesterday, and found it to be non-working. There is intermittent crackling, sometimes hum, one channel distorts badly and there isn't much of the actual compression action going on no matter how you set the switches. I traced back the distortion to one of the amp cards, which luckily uses only easily optainable transistors. Only one of the meters shows a reaction.
Does anyone here have experience working on these units?
The input voltage selector can be set to a wide variety of voltages, I chose 230V (though in reality it is somewhat lower here) to be on the safe side. I doubt 220V would make much of a difference, but I thought would probably stress components unnecessarily.
The caps are mostly WIMA electrolytics from the 60s. Usually it is a safe bet that a lot of old caps have dried up, and replacing them would fix most if not all of the problems. Has anyone here already done that and found to be the case? Can you suggest a type/brand?
Thanks!
Anyway, I finally tried the unit out yesterday, and found it to be non-working. There is intermittent crackling, sometimes hum, one channel distorts badly and there isn't much of the actual compression action going on no matter how you set the switches. I traced back the distortion to one of the amp cards, which luckily uses only easily optainable transistors. Only one of the meters shows a reaction.
Does anyone here have experience working on these units?
The input voltage selector can be set to a wide variety of voltages, I chose 230V (though in reality it is somewhat lower here) to be on the safe side. I doubt 220V would make much of a difference, but I thought would probably stress components unnecessarily.
The caps are mostly WIMA electrolytics from the 60s. Usually it is a safe bet that a lot of old caps have dried up, and replacing them would fix most if not all of the problems. Has anyone here already done that and found to be the case? Can you suggest a type/brand?
Thanks!